Note - Blast analyses are based on comparisons of the phosphosites and the bordering four amino acids on each side of these phosphosites.

Phosphosite
Human Protein:	ATXN1
Human P-Site:	Y139
P-Site Sequence:	SSQYSGTYASFIPSQ
UniProt:	P54253
Intern. Prot. ID:	IPI00432008

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	ATXN1	P54253	Y139	SSQYSGTYASFIPSQ	100 / 9 AA	87
Phosphosite 1:	ATXN1	P54253	T138	GSSQYSGTYASFIPS	100 / 8 AA	87
Phosphosite 2:	ATXN1	P54253	S141	QYSGTYASFIPSQLI	100 / 7 AA	87
Phosphosite 3:	CEACAM5	P06731	Y653	TPNNNGTYACFVSNL	62 / 8 AA	77
Phosphosite 4:	USP22	Q9UPT9	T481	TLESGHYTSFIRQHK	75 / 8 AA	60
Phosphosite 5:	USP51	Q70EK9	T667	TLESGHYTSFIRQQK	75 / 8 AA	80
Phosphosite 6:	USP27X	A6NNY8	T382	TLESGHYTSFIRHHK	75 / 8 AA	50
Phosphosite 7:	USP22	Q9UPT9	Y480	GTLESGHYTSFIRQH	75 / 8 AA	60
Phosphosite 8:	USP51	Q70EK9	Y666	GTLESGHYTSFIRQQ	75 / 8 AA	80
Phosphosite 9:	USP27X	A6NNY8	Y381	GTLESGHYTSFIRHH	75 / 8 AA	50
Phosphosite 10:	SLC25A20	O43772	T55	QPPMYSGTFDCFRKT	62 / 8 AA	33
Phosphosite 11:	RASSF5	Q8WWW0	Y236	KLSEDGTYTGFIKVH	71 / 7 AA	47
Phosphosite 12:	ARL6IP2	Q8NHH9	Y456	EAEIEETYANFIKHN	71 / 7 AA	66
Phosphosite 13:	NFATC2	Q13469	S175	SPASSGSSASFISDT	75 / 8 AA	100
Phosphosite 14:	GATA5	Q9BWX5	Y142	GTSYSATYPAYVSPD	44 / 9 AA	41
Phosphosite 15:	SEMA3A	Q14563	T190	DGELYSGTAADFMGR	75 / 8 AA	89
Phosphosite 16:	ZNF142	P52746	Y253	SNFYSDTYACPVCRE	55 / 9 AA	188
Phosphosite 17:	PKIA	P61925	Y8	MTDVETTYADFIASG	83 / 6 AA	8
Phosphosite 18:	E2A	P15923	Y108	KSGERGAYASFGRDA	83 / 6 AA	68
Phosphosite 19:	APOB	P04114	T3512	LSREYSGTIASEANT	85 / 7 AA	516
Phosphosite 20:	LIMA1	Q9UHB6	T428	NNKLSLGTYASLHGR	83 / 6 AA	85